ethdev: add function to get hairpin peer ports list

[dpdk.git] / lib / librte_ethdev / rte_ethdev.c

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 6f67c80..d72137c 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -2259,6 +2259,30 @@ rte_eth_hairpin_unbind(uint16_t tx_port, uint16_t rx_port)
        return ret;
 }
 
+int
+rte_eth_hairpin_get_peer_ports(uint16_t port_id, uint16_t *peer_ports,
+                              size_t len, uint32_t direction)
+{
+       struct rte_eth_dev *dev;
+       int ret;
+
+       if (peer_ports == NULL || len == 0)
+               return -EINVAL;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+       dev = &rte_eth_devices[port_id];
+       RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->hairpin_get_peer_ports,
+                               -ENOTSUP);
+
+       ret = (*dev->dev_ops->hairpin_get_peer_ports)(dev, peer_ports,
+                                                     len, direction);
+       if (ret < 0)
+               RTE_ETHDEV_LOG(ERR, "Failed to get %d hairpin peer %s ports\n",
+                              port_id, direction ? "Rx" : "Tx");
+
+       return ret;
+}
+
 void
 rte_eth_tx_buffer_drop_callback(struct rte_mbuf **pkts, uint16_t unsent,
                void *userdata __rte_unused)